What are the factors attributing to the increase of the force on the walls of the blood vessels A: Extra fluid B: The properties fluid C: Narrower blood vessels D: Environment facto

In patients with thrombocytopenia, spontaneous bleeding spots and<br/>purpura often appear on the skin and mucosa, mainly due to () A: Not easy to form antithrombus<br/>[B].<br/>Blood vessels do not constrict easily B: Failure to maintain the integrity of vascular endothelium C: Blood clot retraction disorder D: Blood clotting disorders

Bleeding spots on the skin caused by thrombocytopenia is due to A: Platelets don't stick easily. B: Platelets do not aggregate easily. C: Blood vessels do not constrict easily D: Loss of capillary wall integrity

_____is an inflammatory disease affecting the muscular walls of the arteries A: Arteritis B: Phlebitis C: Arteriolitis D: Venulitis

Which options are the body's regulation of temperature in a cold environment A: sympathetic nerve tension increases B: skin blood vessels contract, heat loss reduces C: shivering D: basal metabolic rate increase, heat production increase